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Copper(I)−Olefin Complexes: The Effect of the Trispyrazolylborate Ancillary Ligand in Structure and Reactivity

AuthorsMartín, Carmen; Muñoz-Molina, José María; Locati, Abel; Álvarez, Eleuterio ; Maseras, Feliu; Belderrain, Tomás R.; Pérez, Pedro J.
KeywordsNMR spectra
Olefin complexes
Issue Date22-Jul-2010
PublisherAmerican Chemical Society
CitationOrganometallics 29(16): 3481-3489 (2010)
AbstractThe spectroscopic and structural characteristics and the relative reactivity of several TpMsCu(olefin) (olefin = ethylene, 1, 1-hexene, 2, allyl ethyl ether, aee, 3, cyclohexene, 4, and styrene, 5) complexes bearing the bulky hydrotris(3-mesitylpyrazolyl)borate ligand have been examined. Experimental data, including an unusual high-field chemical shift in the 1H and 13C NMR spectra, and DFT theoretical calculations support the proposal that the copper−olefin linkage is mainly sustained by σ-donation, lacking a substantial degree of π-back-donation.
Description9 páginas, 4 figuras, 5 tablas, 4 esquemas.
Publisher version (URL)http://dx.doi.org/10.1021/om1002705
Appears in Collections:(IIQ) Artículos
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